n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 12 |
4 | 104 |
5 | 231 |
6 | 380 |
7 | 3039 |
8 | 12070 |
9 | 22609 |
10 | 47955 |
11 | 60409 |
12 | 182492 |
13 | 859647 |
14 | 8039644 |
15 | 11990003 |
16 | 78269808 |
17 | 6091154409 |
18 | 6941215856 |
19 | 13803257219 |
[1,4,12,104,231,380,3039,12070,22609,47955,60409, 182492,859647,8039644,11990003,78269808, 6091154409,6941215856,13803257219] |